| #!/usr/bin/env python | |
| ''' | |
| plots image as logPolar and linearPolar | |
| Usage: | |
| logpolar.py | |
| Keys: | |
| ESC - exit | |
| ''' | |
| # Python 2/3 compatibility | |
| from __future__ import print_function | |
| import numpy as np | |
| import cv2 as cv | |
| def main(): | |
| import sys | |
| try: | |
| fn = sys.argv[1] | |
| except IndexError: | |
| fn = 'fruits.jpg' | |
| img = cv.imread(cv.samples.findFile(fn)) | |
| if img is None: | |
| print('Failed to load image file:', fn) | |
| sys.exit(1) | |
| img2 = cv.logPolar(img, (img.shape[0]/2, img.shape[1]/2), 40, cv.WARP_FILL_OUTLIERS) | |
| img3 = cv.linearPolar(img, (img.shape[0]/2, img.shape[1]/2), 40, cv.WARP_FILL_OUTLIERS) | |
| cv.imshow('before', img) | |
| cv.imshow('logpolar', img2) | |
| cv.imshow('linearpolar', img3) | |
| cv.waitKey(0) | |
| print('Done') | |
| if __name__ == '__main__': | |
| print(__doc__) | |
| main() | |
| cv.destroyAllWindows() | |